Create statically-linked binary that uses getaddrinfo?

Question

I have included the header netdb.h, where getaddrinfo is included, but gcc issues this warning:

warning: Using \'getaddrinfo\' in s         


        

Answer 1

I think certain features are dependent on the dynamic loader to work things out at run time. static linking is no longer practical unfortunately http://people.redhat.com/drepper/no_static_linking.html

Answer 2

I found a solution: you can use musl library to replace glibc. To use musl, you can either install it and build your software using musl-gcc, or you can use a Linux distribution that uses musl, e.g. Alpine Linux.

In my case, to save time, I chose Alpine Linux to build my program (https://github.com/zhanxw/rvtests), as I don't want to build multiple compilers (gcc, g++ and gfortran).

Answer 3

glibc uses libnss to support a number of different providers for address resolution services. Unfortunately, you cannot statically link libnss, as exactly what providers it loads depends on the local system's configuration.